Importing a long list of constants to a Python file

Question

In Python, is there an analogue of the C preprocessor statement such as?:

#define MY_CONSTANT 50

Also, I have a large list of constants I'd like to import to several classes. Is there an analogue of declaring the constants as a long sequence of statements like the above in a .py file and importing it to another .py file?

Edit.

The file Constants.py reads:

#!/usr/bin/env python # encoding: utf-8 """ Constants.py """  MY_CONSTANT_ONE = 50 MY_CONSTANT_TWO = 51 

And myExample.py reads:

#!/usr/bin/env python # encoding: utf-8 """ myExample.py """  import sys import os  import Constants  class myExample:     def __init__(self):         self.someValueOne = Constants.MY_CONSTANT_ONE + 1         self.someValueTwo = Constants.MY_CONSTANT_TWO + 1  if __name__ == '__main__':     x = MyClass() 

Edit.

From the compiler,

NameError: "global name 'MY_CONSTANT_ONE' is not defined"

function init in myExample at line 13 self.someValueOne = Constants.MY_CONSTANT_ONE + 1 copy output Program exited with code #1 after 0.06 seconds.

Answer 1

Python isn't preprocessed. You can just create a file myconstants.py:

MY_CONSTANT = 50 

And importing them will just work:

import myconstants print myconstants.MY_CONSTANT * 2